Reproducer for phonographs.



P. S. SORHISEE'Q.

REPHODUCEh FOR HWNOGRAPHS.

APPLICAHON FlLE D JULY 1. 191(5- Pz'i'efmted Out.

PETER S. SORENSEN, OF NORTH MILWAUKEE, WISCONSIN.

REPRODUCER FOR PH ONOGRAPHS.

Specification 01 Letters Patent.

Patented Oct. 2, 1917.

Application filed July 1, 1916. Serial No. 107,011.

To all whom it may concern.-

Be it known that I, PETER S. SoiinNsnN, a citizen of the United States,and a resident of the village of North Milwaukee, 1n the county ofMilwaukee and State of Wisconsin, have invented certain new and usefulImprovements in Reproducers for Plionographs; and I do hereby' declarethat the following is a full, clear, and exact description of the same,reference being had to the accompanying drawings, and to the numerals ofreference marked thereon, which form a part of this specification.

Among the different kinds of phonographs and talking machines now on themarket, are two generally well known types, one designed to use a needletracing point or stylusto track over a flat disk record and the otheradapted to use a jewel for the purpose, and this difference inconstruction is due to the different character of records used on thetwo types of machines. The

v records for use on a machine *using a needle point or stylus areprovided with a sound Wave impression of one character while the recordsfor use on the other type of machine are provided with sound waveimpressions I of another character. The one acts to set up the soundvibrations through the reproducer by causing a transverse movement ofthe reproducing point and the other by a substantially vertical orlongitudinal move ment thereof. In each instance the oscillation of thetracing point is transmitted to a diaphragm whereby the sound isreproduced in accordance with the sound wave impression upon the record.

It is an object therefore of; this invention to construct a reproducerWhich is capable of universal use on either of the types of recordsmentioned by simple shifting movement of the tracing point, the tracingpoint in one position being. capable of movement to reproduce sounds-from one kind of record and in another extreme position of adj ustmentcapable of movement to reproduce sounds from another type of record.

It is also an object of this invention to construct a reproducer for useon. talking machines wherein the tracing stylus is pivoted in offsetrelation with respect to the diaphragm so as to be capable of vibratingor oscillating either transversely or longitudinally dependent upon itsangle of ad justment with respect to they diaphragm to permit the sametobe used with diil'erent types of records to reproduce sounds therefromaccording to the particular sound wave impression on the record.

It is also an object 01. this invention to construct a reproducer fortalking machines capable of universal use upon different types able intodifferent positions whereby vibra-' tions of different character may beimparted thereto from the sound wave lines of different character ondifferent records used upon the machine.

I It is finally an object of this invention to construct an improvedtype of adjustable reproducer simple in construction and operation andcapable of being used on a rec- 0rd having either transverse sound wavelines disposed in the plane of the record or those of constant radiusbut varying in depth of impression on the record.

' The invention (inv a preferred form) is illustrated in the drawingsand hereinafter more fully described.

In the drawings:

Figure l is a fragmentary side elevation of a disk record playingmachine illustrating the use of a rcproduccr embodying; the principlesof my invention thereon.

F ig. 2 is an enlarged side elevationo'f the sound box mounted on thesounding arm.

Fig. 3 is a top plan view of the sounding arm showing the adjustableconnection for supportiugthe sound box adj ustably thereon.

Fig. 4 is a detail section taken on line l-4.- of Fig.

Fig. 5 is of F ig.

Fig. 6 is a detail section taken on line (3-6-o;t' Fig: 5.

.As shown in the drawings:

The relerelicc numeral 1, indicates as a whole a talking or'soundreproducing machine having a rotatable table to receive a disk record 2,placed thereon for rotation thereby. A pivoted sounding arm 3, ismounted at one side of the machine 1, and has an extension l, connectedthereinto'by a universal joint 5. lnsertml into the end of the extensionarm 4, is a tubular elbow connection comprising a long tubular portion6, engaged within the end of the er:-

detail section taken on line tension 4:, and communicating at rightangles through a barrel or cylinder 7, rigidly associated therewith.Said barrel or cylindrical portion 7, is provided with. an end cap orcover 8, rigidly secured thereon in any suitable manner. Slidablyinserted Within the barrel 7, is a cylindrical memher 9, having aperipheral shoulder or collar 10, which abuts against the open end ofthe barrel 7. Rigidly secured in the cap 8, of the barrel 7, is a guidescrew 11, having a coiled compression spring 12, Wound thereabout andbearing upon the integral end 'Wall of the inner cylinder 9. Themarginal edge of the open end of the barrel 7, is provided with tworecesses or notches therein having the indicative numerals 1 and 52marked adj acbnt thereto, and a pin 13,,projects from the exterior ofthe cylindrical' member 9, and is adapted to seat in one or the other ofsaid recesses to hold said inner cylinder 9, in one or the other of thetwo possible positions by rotation within the barrel 9. A disk element14, is provided having a tubular hub extension 15, adapted to fit overthe open end of the cylindrical member 9, secured releasably thereto bya pin or screw 16. A sounding diaphragm 17 is mounted in said'disk 14,the assembly afl'ording a sound box, and is adapted to be set invibration by a bell crank lever,

. one arm of which is denoted by the referonce numeral 18, and bearscentrally upon said diaphragm, and the other arm of which is denoted bythe reference numeral 19, and projects beneath and to one side ofsaiddisk element 14. Said disk element 141-, is

provided with a pair of lug extensions 20, between and in which isjournaled a pivot shaft 21, on which said bell crank 1819 is mounted.

A set screw 22, is provided in said bell crank 18--19, adapted to betightened upon the pivot shaft 20, to hold said bell crank securelythereon. The arm 19, of said bell crank is provided with an aperturethrough the outer end thereof adapted to receive a needle or othertracing point or stylus 23, mounted securely therein to. track over therecord.

As shown in Fig. 2, a see screw 24, is pro-- vided threaded into the arm19, at the opposite edge to tighten against the stylus or needle to holdthe same securely therein.

The operation is as follows:

The two possible adjustments of the tracing stylus with reference". tothe arm at, are shown in Fig. 2, one position being shown in dottedlines and the other in full lines. Such adjustments are made by rotatingthe diaphragm head or disk member 14, such rotation being; permitted bypulling .out-

' /wa;rdly to one side of the-arm 4 to with:

draw the inner cylinder 9, against the drier presslon of lits spring 12,and then rotating varm contacting said diaphragm,

-and resilient inter-latching means ape-new said disk member togetherwith said inner cylinder 9, until the pin 13, of said inner cylinderlatches into one or the other of the notches 1 or 2, as the case may be.

With the stylus in one position of adjustment with reference tothetubular sounding arm 4., the tracing point is adapted to track uponone type of a playing record to repro-' duce sounds therefrom accordingto the sound wave impression thereon, and when in the other position ofadjustment, is

adapted to track in another type of wave line impression of anotherrecord to i eproduce sound therefrom. -With the stylus adjusted to thefull line position shown in Fig. 2, the same is susceptible oftransverse vibrations as it tracks upon the face of the disk record, andwhen adjusted into the dotted line position shown, is susceptible tovertical vibrations caused by tracking'in a wave line impression ofanothercharacter on another type of disk. The stylus by 'adjustment, issusceptible to both character of wave line impressions on difl'erentdisk rec ords due to the ofi'set pivotal mounting of the needle carryingarm whereby the needle carrying arm may pivot upon its pivot shaft totransmit different kinds of vibrations according to its adjustment.

ll am aware that various details of construction may be varied through awide range without departing from the principles of this invention and Itherefore do not purpose limiting the patent granted otherwise thannecessitated by the prior art.

I claim as my invention;

1. A. reproducer for phonograph machines capable of use on differenttypes of disk records comprising a diaphragm carrying head, a vibratoryarm pivoted thereon, a tracing stylus mounted in said arm, resilientlyconnected means permitting adjustment of said diaphragm head to changethe angle of contact of said stylus with the playing record, and a pinand notch mechanism for retaining said diaphragm head in fixed adjustedpositions.

2. Ina reproducer of the class described, a rotatable adjustablediaphragm head, means positively latching the same in difarm pivoted onsaid head, a diaphragm mounted on said head contacted by said am, and atracing stylus mounted in said. arm adapted to be shifted on said headto different angular positions with reference to records played.

3. In a reproducer of the class described, a rotatable adjustablediaphragm head, a diaphragm mounted therein, a bell crank vibratory armpivoted on said head with one a stylus mounted in the other arm of saidbell crank,

said diaphragm head in difi'erent positions to latch of adjustment tovary the angle of contact of said stylus with a playing record.

4:. In a device of the class: described the combination with a tubulararm of a 0} lindrical extension thereon, a sound box comprising adiaphragm head a cylimlrical member associated therewith andintcrtitting with said cylindrical member on the arm, a spring coiled,within. said iuterlitting' cylindrical members to hold the same.resiliently associated with one another and permitting rotation oradjustn'ient thereof, and. a pin and latch mechanism between saidcylindrical members to lock the sound box in ditl'erent adjustedpositions with respect to said cylindrical member on said arm.

5. In a device of the class: described, a tubular arm, an integralcylindrical extension thereon, a sound box comprising a dia- 20 phragmhead, a diaphragm mounted therein, a rc 'iroducimg needle connected withthe diaphragm head and with the diaphragm to vibrate the same, acylindrical member associated with the diaplnw-ig'm head andintorfitting with said cylindrical. extension, resil icnt meansatlhriliiig connection between said rylir'nlrical member and saidcylindrical extension permitting rotational adjustments of the diaphragmhead, and. a pin and slot hitching means between said c 'lindricalmember and said cylimlrical c? eusion to latch l-lit' diaphragmhead-into different adjusted msitions.

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

:en'rnn sonnnsnn.

Witnesses: v

thus. '1. Baron-an, l. V. Sonrssnnn.

